I found a petition for new Loud House episodes 80% of the fandom wants. I assume you want Nickelodeon to make them too. Here's the link if you'd like to sign the petition: https://www.gopetition.com/petitions/ideas-for-new-loud-house-episodes-for-season-3.html. The person who made it apologizes for putting "Season 3" in the title; he made it when Season 3 just started and before they said t wrapped production. But when you get to it, it will have "Season 4" in the title.

You need to sign up and create an account before you can sign the petition. To sign it, you need to fill in the boxes on the right of the screen.